Home / 13,507.20-20,269.65-6,111.73

Finding the Fourth Proportional to 13,507.20, 20,269.65 and 6,111.73

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Solution

The fourth proportional to 13,507.20, 20,269.65 and 6,111.73 is: 9,171.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.20 : 20,269.65 = 6,111.73 : x
  2. Step 2: Convert to fraction form
    13,507.20/20,269.65 = 6,111.73/x
  3. Step 3: Cross multiply
    13,507.20x = 20,269.65 × 6,111.73
  4. Step 4: Simplify right side
    13,507.20x = 123,882,505.69
  5. Step 5: Solve for x
    x = 123,882,505.69/13,507.20
  6. Step 6: Final answer
    x = 9,171.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.